- Oct 9, 1999
- 72,636
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My thoughts exactly...Originally posted by: Insane3D
Hmmmmm...where's Hardware?![]()
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Management made some bad decisions, but there were some serious technical problems as well....a very good example of inefficient management.
A7?!? 7 metal mask changes after tape-out on a graphics part?!? That's like a 9 month delay in shipping not to mention about $3-5 million dollar just for the masks alone. 7 mask changes for a graphics part is horrible... nVidia usually productize their A2 stepping, or their A1.Fortunately, a chip was not made between each tape out with the final number being A7 silicon.
"Possible reason"? Of course that's the reason. I can't believe that they didn't simulate every part of the chip. If you don't model it, you are basically saying that it's correct by design - which is pretty scary when you have tens of millions of dollars riding on the design (in sales and in development cost). At companies that I have worked at things that are supposed to be "correct by design" are very, very rare exceptions and are cross-checked by entire teams of people to avoid mistakes like these. I can see that modelling in a simulator a DAC is not easy to ensure correct operation, but certainly a behavioral model (like an RTL stub model) should have been written to ensure that the interface is correct. There's really no excuse not to unless the simulator can't handle stubs well - in which case it's time for a new simulator.Of interesting note are the two bugs that did exist in Rampage silicon. The first was the DAC being flipped, reversing the color channels. It is hard to be certain how this bug managed to slip through, but it did. One possible reason it was not detected is because this was one of the few places on the chip that had not been simulated.
Originally posted by: Hardware
i told you all enough why 3dfx was crap and now it seems matrox is going the same way
come less
come late
come expensive
nobody is buying the phallus (what a crap name)
Hehehe....Originally posted by: Hardware
i told you all enough why 3dfx was crap and now it seems matrox is going the same way
come less
come late
come expensive
nobody is buying the phallus (what a crap name)
Originally posted by: Hardware
i told you all enough why 3dfx was crap and now it seems matrox is going the same way
come less
come late
come expensive
nobody is buying the phallus (what a crap name)
3dfx isn't dead! They're still alive and kicking... inside the NV30 that is!